title: Case 1-1981: antibody activity of light chains.
mesh_terms: D000906:Antibodies / Q000276:immunology*; D000918:Antibody Specificity; D006801:Humans; D007147:Immunoglobulin Light Chains / Q000276:immunology*; D007145:Immunoglobulin kappa-Chains / Q000276:immunology*
chemical_list: D000906:Antibodies; D007147:Immunoglobulin Light Chains; D007145:Immunoglobulin kappa-Chains